266130541 has 2 divisors, whose sum is σ = 266130542. Its totient is φ = 266130540.

The previous prime is 266130523. The next prime is 266130547. The reversal of 266130541 is 145031662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254881225 + 11249316 = 15965^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 266130541 - 2⁷ = 266130413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266130547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133065270 + 133065271.

It is an arithmetic number, because the mean of its divisors is an integer number (133065271).

Almost surely, 2^266130541 is an apocalyptic number.

It is an amenable number.

266130541 is a deficient number, since it is larger than the sum of its proper divisors (1).

266130541 is an equidigital number, since it uses as much as digits as its factorization.

266130541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 266130541 is about 16313.5079305464. The cubic root of 266130541 is about 643.2279473062.

The spelling of 266130541 in words is "two hundred sixty-six million, one hundred thirty thousand, five hundred forty-one".